| Ben Menchaca | 84f3663 | 2014-02-28 20:57:38 +0000 | [diff] [blame] | 1 | /* |
| 2 | ************************************************************************** |
| Murat Sezgin | 5dae883 | 2015-12-03 14:23:19 -0800 | [diff] [blame] | 3 | * Copyright (c) 2014-2016 The Linux Foundation. All rights reserved. |
| Ben Menchaca | 84f3663 | 2014-02-28 20:57:38 +0000 | [diff] [blame] | 4 | * Permission to use, copy, modify, and/or distribute this software for |
| 5 | * any purpose with or without fee is hereby granted, provided that the |
| 6 | * above copyright notice and this permission notice appear in all copies. |
| 7 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 8 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 9 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 10 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 11 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 12 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 13 | * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 14 | ************************************************************************** |
| 15 | */ |
| 16 | |
| 17 | /* |
| Ben Menchaca | 84f3663 | 2014-02-28 20:57:38 +0000 | [diff] [blame] | 18 | * struct ecm_interface_route |
| 19 | * An ecm route supports either v4 or v6 routing information |
| 20 | */ |
| 21 | struct ecm_interface_route { |
| Murat Sezgin | 313f222 | 2016-08-11 12:22:10 -0700 | [diff] [blame] | 22 | struct dst_entry *dst; /* Both ipv4 and v6 have a common dst entry. It is an overlay pointer of rtv4 or rtv6 */ |
| Ben Menchaca | 84f3663 | 2014-02-28 20:57:38 +0000 | [diff] [blame] | 23 | union { |
| 24 | struct rtable *rtv4; /* IPv4 route */ |
| 25 | struct rt6_info *rtv6; /* IPv6 route */ |
| 26 | } rt; |
| 27 | bool v4_route; /* True when a v4 route, false when v6 */ |
| 28 | }; |
| 29 | |
| 30 | /* |
| Shyam Sunder | 6358b86 | 2015-05-04 15:06:24 +0530 | [diff] [blame] | 31 | * Netdev Index value for a Loopback device |
| 32 | */ |
| 33 | #define ECM_INTERFACE_LOOPBACK_DEV_INDEX 1 |
| 34 | |
| 35 | /* |
| Thomas Wu | 0d64598 | 2016-01-24 12:27:54 -0800 | [diff] [blame] | 36 | * IPSec Core and Interface Definition |
| 37 | */ |
| 38 | #define ECM_INTERFACE_IPSEC_DEFAULT_CORE 0x2 |
| 39 | #define ECM_INTERFACE_IPSEC_CORE_OFFSET 24 |
| 40 | #define ECM_INTERFACE_IPSEC_IF_NUM ((ECM_INTERFACE_IPSEC_DEFAULT_CORE << ECM_INTERFACE_IPSEC_CORE_OFFSET) | NSS_IPSEC_RULE_INTERFACE) |
| 41 | |
| 42 | /* |
| Ben Menchaca | 84f3663 | 2014-02-28 20:57:38 +0000 | [diff] [blame] | 43 | * External defined functions |
| 44 | */ |
| 45 | extern struct net_device *bond_get_tx_dev(struct sk_buff *skb, uint8_t *src_mac, |
| 46 | uint8_t *dst_mac, void *src, |
| 47 | void *dst, uint16_t protocol, |
| Suman Ghosh | fb8e770 | 2015-08-20 15:27:57 +0530 | [diff] [blame] | 48 | struct net_device *bond_dev, |
| 49 | __be16 *layer4hdr); |
| Murat Sezgin | 5dae883 | 2015-12-03 14:23:19 -0800 | [diff] [blame] | 50 | bool ecm_interface_mac_addr_get_no_route(struct net_device *dev, ip_addr_t ip_addr, uint8_t *mac_addr); |
| Ben Menchaca | 84f3663 | 2014-02-28 20:57:38 +0000 | [diff] [blame] | 51 | bool ecm_interface_mac_addr_get(ip_addr_t addr, uint8_t *mac_addr, bool *on_link, ip_addr_t gw_addr); |
| 52 | bool ecm_interface_find_route_by_addr(ip_addr_t addr, struct ecm_interface_route *ecm_rt); |
| 53 | void ecm_interface_route_release(struct ecm_interface_route *rt); |
| Murat Sezgin | 188b4a3 | 2015-06-03 10:58:59 -0700 | [diff] [blame] | 54 | #ifdef ECM_IPV6_ENABLE |
| 55 | void ecm_interface_send_neighbour_solicitation(struct net_device *dev, ip_addr_t addr); |
| 56 | #endif |
| 57 | void ecm_interface_send_arp_request(struct net_device *dest_dev, ip_addr_t dest_addr, bool on_link, ip_addr_t gw_addr); |
| Xiaoping Fan | c773546 | 2015-08-09 18:57:26 -0700 | [diff] [blame] | 58 | struct neighbour *ecm_interface_ipv4_neigh_get(ip_addr_t addr); |
| 59 | #ifdef ECM_IPV6_ENABLE |
| 60 | struct neighbour *ecm_interface_ipv6_neigh_get(ip_addr_t addr); |
| 61 | #endif |
| Shyam Sunder | 2ca0249 | 2016-08-05 20:55:12 +0530 | [diff] [blame] | 62 | bool ecm_interface_is_pptp(struct sk_buff *skb, const struct net_device *out); |
| 63 | bool ecm_interface_is_l2tp_packet_by_version(struct sk_buff *skb, const struct net_device *out, int ver); |
| 64 | bool ecm_interface_is_l2tp_pptp(struct sk_buff *skb, const struct net_device *out); |
| ratheesh kannoth | a32fdd1 | 2015-09-09 08:02:58 +0530 | [diff] [blame] | 65 | struct ecm_db_iface_instance *ecm_interface_establish_and_ref(struct ecm_front_end_connection_instance *feci, struct net_device *dev, struct sk_buff *skb); |
| Shyam Sunder | 6358b86 | 2015-05-04 15:06:24 +0530 | [diff] [blame] | 66 | |
| 67 | #ifdef ECM_MULTICAST_ENABLE |
| Shyam Sunder | a2e08ee | 2015-06-18 21:32:13 +0530 | [diff] [blame] | 68 | int32_t ecm_interface_multicast_heirarchy_construct_routed(struct ecm_front_end_connection_instance *feci, struct ecm_db_iface_instance *interfaces, struct net_device *in_dev, ip_addr_t packet_src_addr, ip_addr_t packet_dest_addr, uint8_t maxvif, uint32_t *dst_dev, uint32_t *to_interface_first, bool mfc_update, __be16 *layer4hdr, struct sk_buff *skb); |
| Shyam Sunder | 6358b86 | 2015-05-04 15:06:24 +0530 | [diff] [blame] | 69 | |
| ratheesh kannoth | a32fdd1 | 2015-09-09 08:02:58 +0530 | [diff] [blame] | 70 | int32_t ecm_interface_multicast_heirarchy_construct_bridged(struct ecm_front_end_connection_instance *feci, struct ecm_db_iface_instance *interfaces, struct net_device *br_dev, ip_addr_t src_addr, ip_addr_t dest_addr, uint8_t mc_max_dst, int32_t *mc_dst_dev, uint32_t *to_interface_first, uint8_t *src_node_addr, __be16 *layer4hdr, struct sk_buff *skb); |
| Shyam Sunder | 6358b86 | 2015-05-04 15:06:24 +0530 | [diff] [blame] | 71 | |
| 72 | void ecm_interface_multicast_stats_update(struct ecm_db_connection_instance *ci, uint32_t from_tx_packets, uint32_t from_tx_bytes, uint32_t from_rx_packets, uint32_t from_rx_bytes, uint32_t to_tx_packets, uint32_t to_tx_bytes, uint32_t to_rx_packets, uint32_t to_rx_bytes); |
| 73 | |
| 74 | bool ecm_interface_multicast_find_updates_to_iface_list(struct ecm_db_connection_instance *ci, struct ecm_multicast_if_update *, uint32_t flags, bool is_br_snooper, uint32_t *dst_dev, uint32_t max_to_dev); |
| 75 | |
| 76 | bool ecm_interface_multicast_check_for_br_dev(uint32_t dest_if[], uint8_t max_if); |
| Shyam Sunder | a2e08ee | 2015-06-18 21:32:13 +0530 | [diff] [blame] | 77 | |
| 78 | int32_t ecm_interface_multicast_check_for_src_ifindex(int32_t mc_if_index[], int32_t max_if_index, int32_t if_num); |
| Murat Sezgin | 5dae883 | 2015-12-03 14:23:19 -0800 | [diff] [blame] | 79 | int32_t ecm_interface_multicast_from_heirarchy_construct(struct ecm_front_end_connection_instance *feci, |
| Murat Sezgin | 91c5d71 | 2015-06-12 15:16:22 -0700 | [diff] [blame] | 80 | struct ecm_db_iface_instance *interfaces[], |
| Murat Sezgin | 188b4a3 | 2015-06-03 10:58:59 -0700 | [diff] [blame] | 81 | ip_addr_t packet_src_addr, ip_addr_t packet_dest_addr, |
| 82 | int ip_version, int packet_protocol, |
| 83 | struct net_device *given_dest_dev, bool is_routed, |
| 84 | struct net_device *given_src_dev, |
| Suman Ghosh | fb8e770 | 2015-08-20 15:27:57 +0530 | [diff] [blame] | 85 | uint8_t *dest_node_addr, uint8_t *src_node_addr, |
| ratheesh kannoth | a32fdd1 | 2015-09-09 08:02:58 +0530 | [diff] [blame] | 86 | __be16 *layer4hdr, struct sk_buff *skb); |
| Murat Sezgin | 5dae883 | 2015-12-03 14:23:19 -0800 | [diff] [blame] | 87 | #endif |
| 88 | |
| 89 | int32_t ecm_interface_heirarchy_construct(struct ecm_front_end_connection_instance *feci, |
| 90 | struct ecm_db_iface_instance *interfaces[], |
| 91 | struct net_device *const_if, struct net_device *other_if, |
| Murat Sezgin | f92db49 | 2016-07-15 11:33:15 -0700 | [diff] [blame] | 92 | ip_addr_t lookup_src_addr, |
| 93 | ip_addr_t lookup_dest_addr, |
| 94 | ip_addr_t real_dest_addr, |
| Murat Sezgin | 5dae883 | 2015-12-03 14:23:19 -0800 | [diff] [blame] | 95 | int ip_version, int packet_protocol, |
| 96 | struct net_device *given_dest_dev, |
| 97 | bool is_routed, struct net_device *given_src_dev, |
| 98 | uint8_t *dest_node_addr, uint8_t *src_node_addr, |
| 99 | __be16 *layer4hdr, struct sk_buff *skb); |
| Murat Sezgin | 188b4a3 | 2015-06-03 10:58:59 -0700 | [diff] [blame] | 100 | void ecm_interface_stats_update(struct ecm_db_connection_instance *ci, uint32_t from_tx_packets, uint32_t from_tx_bytes, uint32_t from_rx_packets, uint32_t from_rx_bytes, uint32_t to_tx_packets, uint32_t to_tx_bytes, uint32_t to_rx_packets, uint32_t to_rx_bytes); |
| Gareth Williams | 46f4b5f | 2014-06-01 23:35:23 +0100 | [diff] [blame] | 101 | struct net_device *ecm_interface_dev_find_by_addr(ip_addr_t addr, bool *from_local_addr); |
| Shyam Sunder | 6358b86 | 2015-05-04 15:06:24 +0530 | [diff] [blame] | 102 | void ecm_interface_stats_update(struct ecm_db_connection_instance *ci, uint32_t from_tx_packets, uint32_t from_tx_bytes, uint32_t from_rx_packets, uint32_t from_rx_bytes, uint32_t to_tx_packets, uint32_t to_tx_bytes, uint32_t to_rx_packets, uint32_t to_rx_bytes); |
| 103 | |
| Murat Sezgin | b3731e8 | 2014-11-26 12:20:59 -0800 | [diff] [blame] | 104 | struct net_device *ecm_interface_get_and_hold_dev_master(struct net_device *dev); |
| Tushar Mathur | cccbf28 | 2015-01-13 01:22:44 +0530 | [diff] [blame] | 105 | void ecm_interface_dev_regenerate_connections(struct net_device *dev); |
| ratheesh kannoth | a32fdd1 | 2015-09-09 08:02:58 +0530 | [diff] [blame] | 106 | struct net_device *ecm_interface_dev_find_by_local_addr(ip_addr_t addr); |
| Murat Sezgin | 5dae883 | 2015-12-03 14:23:19 -0800 | [diff] [blame] | 107 | bool ecm_interface_find_gateway(ip_addr_t addr, ip_addr_t gw_addr); |
| Suman Ghosh | 7a26171 | 2016-01-12 21:42:55 +0530 | [diff] [blame] | 108 | void ecm_interface_dev_defunct_connections(struct net_device *dev); |
| Murat Sezgin | a5f3de1 | 2016-08-02 17:29:30 -0700 | [diff] [blame] | 109 | void ecm_interface_node_connections_decelerate(uint8_t *mac); |